<template>
	<view class="goods-detail-container" v-if="goods_info.goods_name">
		<!-- 轮播图区域 -->
		<swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
			<swiper-item v-for="(item,idx) in goods_info.pics" :key="idx">
				<image :src="item.pics_big" @click="preview(idx)"></image>
			</swiper-item>
		</swiper>
		
		<!-- 商品信息区域 -->
		<view class="goods-info-box">
			<!-- 商品价格 -->
			<view class="price">
				¥{{goods_info.goods_price}}
			</view>
			<!-- 商品信息 -->
			<view class="goods-info-body">
				<!-- 商品名字 -->
				<view class="goods-name">
					{{goods_info.goods_name}}
				</view>
				<!-- 收藏 -->
				<view class="favi">
					<uni-icons type="star" size="18" color="gray"></uni-icons>
					<text>收藏</text>
				</view>
			</view>
			<!-- 商品运费 -->
			<view class="yf">
				快递: 免运费{{total}}
			</view>
		</view>
		<rich-text :nodes="goods_info.goods_introduce"></rich-text>
		
		<!-- 商品导航组件 -->
		<view class="goods-nav">
			<uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
		</view>
	</view>
</template>

<script>
	import {mapState, mapGetters} from "vuex"
	export default {
		data() {
			return {
				goods_info: {},
				options: [{
							icon: 'shop',
							text: '店铺',
							infoBackgroundColor:'#007aff',
							infoColor:"red"
						}, {
							icon: 'cart',
							text: '购物车',
							//info: 0
						}],
				buttonGroup: [{
				  text: '加入购物车',
				  backgroundColor: '#ff0000',
				  color: '#fff'
				},
				{
				  text: '立即购买',
				  backgroundColor: '#ffa200',
				  color: '#fff'
				}
				]
			}
		},
		computed: {
			//...mapState("m_cart", ["cart"])
			...mapGetters("m_cart", ["total"]),
			...mapState({
				cart: (state) => state.m_cart.cart
			}),
			
		},
		onLoad(options) {
			const goods_id = options.goods_id
			this.getGoodsDetail(goods_id)
		},
		methods: {
			onClick(e) {
				if(e.content.text == "购物车") {
					uni.switchTab({
						url: "/pages/cart/cart"
					})
				}
			},
			buttonClick(e) {
				if(e.content.text == "加入购物车") {
					//组织商品的信息对象
					const goods = {
						goods_id: this.goods_info.goods_id,
						goods_name: this.goods_info.goods_name,
						goods_price: this.goods_info.goods_price,
						goods_count: 1,
						goods_small_logo: this.goods_info.goods_small_logo,
						goods_state: true
					}
					this.$store.dispatch("m_cart/addToCart", goods)
				}
			},
			preview(idx) {
				//调用小程序api实现图片预览
				uni.previewImage({
					//从哪张图开始预览
					current: idx,
					//获取所有图片的URL地址
					urls: this.goods_info.pics.map(item => item.pics_big)
				})
			},
			async getGoodsDetail(goods_id) {
				const {data: res} = await uni.$http.get("/api/public/v1/goods/detail", {goods_id})
				if(res.meta.status != 200) return uni.showMsg()
				res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, "<img style='display:block' ").replace(/.webp/g, ".jpg")
				this.goods_info = res.message
			}
		},
		watch: {
			total: {
				immediate: true,
				handler: function(newval) {
					this.$set(this.options[1], "info", newval)		
				}
			}
		}
	}
</script>

<style lang="scss">
.goods-detail-container {
	//padding-bottom: 50px;
}
swiper {
	height: 750rpx;
	
	image {
		height: 100%;
		width: 100%;
	}
}
.goods-info-box {
	padding: 10px;
	padding-right: 0;
	.price {
		color: #C00000;
		font-size: 18px;
		margin: 10px 0;
	}
	.goods-info-body {
		display: flex;
		justify-content: space-between;
		.goods-name {
			font-size: 13px;
			margin-right: 10px;
		}
		.favi {
			width: 120px;
			font-size: 12px;
			display: flex;
			flex-direction: column;
			align-items: center;
			justify-content: center;
			border-left: 1px solid #efefef;
			color: gray;
		}
	}
	.yf {
		font-size: 12px;
		color: gray;
		margin: 10px 0;
	}
}
.goods-nav {
	position: sticky;
	bottom: 0
}
</style>
